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Discussion Starter #1
:confused..only had my car a week and still trying to understand if the auto box is working correctly. new to bmw autos.
going downhill it sometimes changes down if no throttle applied, on long hills it will do two changedowns. my concern is how long it takes to change up once back on the flat especially after two downshifts - sometimes it takes 5-10 seconds to change up under very light or no throttle . is this normal? all else works fine.
having read some of the auto issues posted i was planning to get box oil and filter changed - car has done 97k and i dont know if its ever been replaced. i also read on the forum about autos learning their drivers modes - is this for real?
 

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Hi Jimbo

I too was taking by slight surprise going from manual (all my life) to auto. I noticed on hills too that it kicks down if you dont's accelarate (sp) etc,

I take it you don;t have the M sport selection as in semi automatice gear change (if that's the right term).

It's all to do with throttle control and you'll need a little practice. Not that I am encouraging you to speed downhill but rather to anticipate when to expect it.

For example if you can keep an eye on the rev counter whilst going down hill you'll see when it auto kicks down at maybe 1500 rpm. It's definitely a different way of driving and you have to "untrain" your brain a bit to get used to it.

Similarly I give a gentle squeeze if I want it to change up a gear, there is a small threshold, at the top of the accelerator pedal that if you squeeze past it it kicks down and gives you more accelelaration. Once I have reached the desired speed I come fuilly off the throttle so it changes to a more economical gear and drive normally.

It's quite hard to explain in text.... but i hope it helps a bit :)

Is this your first auto? Red :)

PS Speak to a man called Mtec B about getting auto gear box looked at, or search the forum, there is stuff posted.
PPS I don't think the auto box learns your style but I'm sure the ECU "can".
 

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Discussion Starter #3
its not my first auto - had merc and saab which were completely different.
car has steptronic box so sport auto and "manual" also available. am starting to learn how to "control" changes on the throttle but somewhat relieved to hear that it is probably all working ok. the time it takes to change up after the hill is still of concern but hoping that new oil etc will speed changes up. will be looking for a gearbox specialist in the south west - any recommendations gratefully received.

thanks for your response its a big relief to know its ok, cheers
 
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